Arch-bar.



Patented May l3, I902.

24 m woerrgw T. c. SALVETER.

ARCH BAR.

(Application filed Sept. 16. 1901..)

(No Model.)

THE ubams PETERS ca. PHOTO-LUNG, wAsnmm'oN, n. c

UNITED STATES PATENT OFFICE:

THEODORE O. SAL'VETER, OF ST. LOUIS, MISSOURI.

ARCH-BAR.-

:SPEQIFIGATION forming part of Letters Patent No. 699,981, dated May 13, 1902.

Application filed September 16,1901. Serial No. 75,520. (No model.) l

1T0 aZZ whom it may concern.

Be it known that I, THEODORE O. SALVE- -TER, of the city of St. Louis, State of Missouri,

reference being had to the accompanying drawings, forming a part hereof.

This invention relates to arch-bars fortruckframes; and it consists of the novel construction, combination, and arrangement of partshereinafter shown, described, and claimed.

One object of this invention is to provide an improved arch-bar comprising an upperv and a lower member and a spring-seat, all

formed in one'integral casting.

Another object is to provide an improved steel arch-bar, consisting of an upper member and a lower member and a spring-seat, all formed in one casting and provided with reinforcing flanges or webs to give additional strength. The special advantages resulting from such formation reside in the fact that many parts used in the usual composite archbars are omitted, and by. including all the different parts in one integral structure danger of displacement or loss ofany of the parts and the consequent serious results of such occurrence are avoided.

Figure 1 is a side elevation showing the complete arch-bar. Fig. 2 shows the upper side of the arch-bar. on the line a a of Fig. 1. Fig. 4. is a section taken on the line b b of Fig. 2. Fig. 5 is a sectional View of the lower member, taken on the line 0 c of Fig. 1.

' 1 indicates theupper member of the archbar, which in plan View is in the form of a plate and in side elevation is slightly arched or chamfered, as shown in Fig. 1.

2 indicates the ends of the lower member, which for some distance are substantially parallel with the upper member and diverge downwardly at 3, and the divergent parts 4.

thereof are formed integraliwith= the lower ends of the posts 5, which support the springseat, and the said parts4 are extended horiz'ontally across the space intervening between the lower ends'of the posts 5, as indicated by 6. The spring-seat 7 is formed integral with the posts 5 above the horizontal part 6 of the Fig. 3 is a section taken.

lower member and is connected to the said lower member by an integral web 8, thereby giving great strength and firmness to the said spring-seat.

As may be seen by referring to Fig. 3, the

spring-seat is considerably broader than either of the members of the arch-bar and is further braced and secured in position by a series of webs 'or flanges 9, connecting the same with the part 6 of the lower member.

The ends 2 of the lower member,1under which the oil-boxes are carried, are preferably connected to the upper member 1 by the integral webs 10, thereby giving great strength to this part of the arch-bar, as required to support a great weight. The said webs .10, are enlarged to provide bearings 11, through which openings 12 are formed, which are adapted to receive the bolts or rods which hold the oilboxes in place. Flanges 13 extend from the sides of the bearings 11 to the edges of the upper and lower members, thereby forming additional reinforcements or braces to assist in holding the parts together. The web or flange 14: extends along the upper side of the divergent parts 4. of the lower member to the lower ends of the posts 5, thereby strengthening these parts, and the said webs are extended upwardly along the outer sides of the posts 5, as indicated by 15, thereby strengthening the parts. Webs16 are also formed integral with the under side of the upper memher 1 from the upper ends of the posts 5 outwardly to a point wherethey arecombined with the webs or flanges 14.; It will be seen that by forming the webs as described a large central opening is left outside of the post 5; but I may fill in this space by forming one single web and joining the upper and lower members to the posts. The upper member above the spring-seat is preferably strength ened by means of an enlargement or flange 17, taking the place of the flanges 16, which are omitted from the under side of that portion of the upper member between the springseat and posts 5; v

18 indicates integral extensions or lugs which project from the spring-seat 7, the object thereof being to hold the springs in position. I have shown only one of these lugs for holding a single spring in position; but

others may be formed on the spring-seat and located at proper places, if found necessary.

In Fig. l I have shown the lower member of the truck-frame in dotted lines, showing its position relative to the arch-bar and how it may be connected thereto when in use.

The application of the oil-boxes between the ends of the arch-bar and the lower member of the truck-frame will be readily understood by those familiar with such appliances, and for that reason I have omitted these parts from the drawings. As will be seen by the above description I combine the upper member and the lower member in one integral casting, preferably of steel, strengthened and reinforced by the webs and bearings,which I have described in detail.

The spring-seat is formed integral with the lower part and with the side posts, and the usual bolts for holding the posts and the spring-seat in position are rendered unnecessary by this construction, and the danger of their displacement or loss is consequently avoided.

I claim- 1. An arch-bar, comprising a oambered upper member, a lower member having its ends substantially parallel with the said upper member, and connected therewith byintegral webs and the middle of the lower member extending below the said upper member, posts connecting the upper and lower members, and a spring-seat supported above the lower member and formed integral therewith and with the said posts.

2. The improved arch-bar, comprising an arched upper member, a lower member, having its ends substantially parallel with the upper member and connected thereto by integral webs, divergent extensions 4 integral with the lower member, integral posts 5 connecting the divergent parts 4 of the lower member with the upper member, the horizontal part 6 of the lower member formed integral with the lower end of said posts, and a spring-seat supported between the posts above the said part 6.

3. The improved arch-bar, comprising an arched upper member, a lower member having its ends extended horizontally below the ends of the upper member and connected therewith by integral webs, posts integral with the upper member, a spring-seat integral with, the lower ends of said posts, integral posts 4 of the lower member connecting the lower ends of the said posts with the horizontal portions of the lower members and with the upper member, and reinforcing-flanges integral with said members to give additional strength.

In testimony whereof I affix my signature in presence of two witnesses.

THEODORE C. SALVETER.

Witnesses:

ALFRED A. EICKS, JOHN D. RIPPEY. 

